Valve for internal-combustion engines.



G. E. FRAZER.

VALVE FOR INTERNAL COMBUSTION ENGINES.

APPLICATION map JULY 6. 1914.

1.139.661. Patented May18,1915.

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VALVE FOR INTERNAL-COMBUSTION ENGINES.

Application filed July 6, 1914.

To all whom it may concern: Be it known that I, GEORGE E; Fnaznn, citizen of the United States, residing at Flint, county of Genesee, State of Michigan, have invented a certain new and useful Improvement in Valves for Internal-Combustion Engines, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to an improvement in valves for internal combustion engines shown in the accompanying drawings and more particularly pointed out in the followin specification and claims.

he object of the present invention is to overcome well known objections to the pup pet type of valve in common use such as noisy operation, frequent grinding, and the removal of carbon to insure proper seating, by constructing a valve of sliding type 5 adapted to automatically take up any wear occasioned through use between the valve and its co-acting elements, and also to insure a tight joint between registering parts,

thereby providing against loss of compression.

Other advantages and improvements will hereafter appear.

In the drawings accompanying this specification:-Figure l, is a vertical cross sec- 85 tional view through the cylinder and a por- ,tion of the crank case of an internal combustion engine, showing theinlet and exhaust valves. Fig. 2, is a fragmentary sectional view through the valve chamber,

40 showing a portion of the adjustable valve plate, the valve back of it, and the ring surrounding the port provided in the adjustable valve plate. Fig. 3, is a fragmentary sectional view of the cylinder and valve chamher, showing a plurality of rings surrounding the port. Fig. 4, is a fragmentary sectional view of the valve chamber at right angles to Fig. 3 showing the rings surrounding the port in elevation and section.

Fig. 5, is an elevation of the adjustable plate opposing the valve, indicating the oil grooves formed therein to distribute a lubricant. Fig. 6, is a horizontal sectional view of a. fragmentary portion of the cylinder in line with one of its ports and also through the valve and valve chamber.

Specification of Letters Patent.

Patented May 18, 1915.

Serial No. 849,038.

-being identical in construction and operation a description of one will include the other. The valve E is provided with a stem E projecting through the lower wall of the valve chamber and at its end is connected by a bifurcated plunger rod E ,sleeved in the framewith a rocking lever E, pivoted at E to the wall of the crank case B.

G is a crank shaft, carrying a pinion G in mesh with the gear A on the main crank shaft A.

G is an arm connecting the rocking lever B with the crank shaft G.

H, is an adjustable plate forced into contact with the valve by springs H, and having an opening it registering with the port Cf leading into the cylinder.

'1, is a flanged ring,hcreaftcr termed a retaining ring, partially lodged in a recess formed in the cylinder wall surrounding the port C, having a projecting edge which enters a recess in the adjustableplate H surrounding the opening it.

I, is a compression ring between which and the retaining ring I, are located a plurality of springs I to force the rings respectively into contact with the face of the plate H and the wall of the cylinder.

In the modification shown in Figs. 3 and i an additional compression ring 1 is providcd to more fully insure a tight joint around the port openings if required. The face of the adjustable plate H,-see Fig. 5is provided with grooves h designed to distributelubricating oil overthe valve as it reciprocates in contact thcrewith,-the opposite face of the valve being lubricated by oil distributed by similar grooves h in the con tacting face of the valve chambersee Fig. 1.

J is an oil pocket in the lower end of the valve chamber, and in the embodiment shown is fed by an oil cup J connected therewith,

a force feed oil'systemh The valve as it reciprocates dips into the pocket J carrying 011 up with it into the grooves and h which distribute the oil over the face of the valve and adjacent contacting surfaces.

K is a removable cover plate secured to i the wall of the cylinder by removing which the valve may be withdrawn or replaced.

Having indicated the several parts by reference letters-,the construction and opera: tion of the device will be readily understood. The inlet and exhaust valves in the present embodyment are actuatedby suitable mechanism in turn operated by the crank shaft actuated by the piston. ,The exhaust valve is timed to close when the inlet valve is opened to deliver gas to the cylinder, and

- upon firing the charge both valves are closed,

followed immediately by the opening of the exhaust valve to release the burned gasesafter which the exhaust valve again closes and the cycle of operation is repeated. The valve as constructed is adapted to open and clse the port twice every revolution of thewall'of the cylinder being further pro- 7 tected by the projecting rim of the retaining ring w ich enters the recess formed'in the valve plate. I

It will be obvious that any Wear between the valve and its abutting wall (which would otherwise resultin loss of compression) is taken up by the adjustable valve plate H, acting in cdnjunctionwith one or more yieldable baflie rings 1, surrounding the; port leading into the cylinder; and'that the valve being designed to slide rather than to lift is kept free from carbon; deposit and is practically noiseless in action. It will also' be obvious thatany suitable: means :may be employed to actuate the valve without de- ,parting from the spirit of 'my invention.

So also if desired a ro'ectiih rim inte ral with the cylinder may be provided to surround the inlet and exhaust ports, in place of the projecting rim of the retaining ringv I, that the joint may be broken between the wall of the cylinder and the adjustable plate H. I

Having thus described my invention what I claim is 1. In an internal combustion engine, a.*

sliding valve, means for actuating the valve,

an adjustable plate adapted to bear against the valve having an opening registering with the gas port leading to the cylinder, resilient elements to force said plate-into contact with the valve, means surrounding the opening in the adjustable plate and co acting means surrounding the gas port connected with the cylinder respectively adapt-'- ed to overlap, whereby the joints between the abutting plates and the cylinder wall are broken. a

2. In an internal combustion engine, a sliding valve, means for actuating the valve,

an adjustable plate adapted to-bear against the valve having an opening registering with the gas port leading to the cylinder, resilient elements to force said plate into contact with the valve, rings surroundingits gas ports carried by the wall of the cylinder adaptedt overlap the edge of the adjust-.

able papititc, (reacting rings located between.

the plate and the wall of'the cylinder adapted to encircle said first named rings, and means for forcing said rings apart and 1D.

abutting contact with the adjustable plat 3nd cylinder wall. i f

3. In an interned combustion engine, a. reciprocating valve provided with a port designed to register with. the gas port leading to the cylinder, said valve being adapted to close said cylinder port when said Valve port is either above or below the gas port in the cylinder, means for actuating the valve, an adjustable plate adapted to bear against the valve having an opening registering with the gas port, means adapted 'to break joints between the adjustable plate and the abutting face of the cylinder wall surrounding the ports, and resilient ele ments to force said plate. into contact with the valve. i

4. In an internal combustion engine,a I

sliding valve, means for actuating the valve, an ad ustable plate adapted to bear against one face of the valve having an opening registering with the gas port leading to the cylinder and provided also with an annular recess surrounding the opening, resilient elements to force said plate into contact with the valve, means carried by the wall of the cylinder adapted to project into the recess formed in the adjustable plate, an annular ring adapted to encircle the opening in the plate located between the plate and the wall of the cylinder, and means for forcin said ring into abutting contact with the a justable plate.

5. In an internal combustion engine, a sliding valve, means for actuating the valve, an ad ustable plate adaptethto bear against one face of the valve having an opening registering with the gas port communicatin with the cylinder and provided also wit an annular recess surrounding the opening,

lit

resilient elements to force the plate into con- Yao tact With the valve, a flanged ring partially lodged in the wall of the cylinder surrounding the gas port, its projecting flange extending into the recess in the adjustable plate, whereby the jointbetween the Wall of the cylinder and the face of the plate may be broken, a ring concentric with-the flange ring adapted to bear against the face of the adjustable valve plate, and suitable resilient elements between said rings to force them apart and in respective contact with the adjustable plate and the Wall of the cylinder.

6. In an internal combustion engine, a valve chamber having an oil pocket into which the valve is adapted to dip as it re- GEORGE E. FRAZER. Witnesses Gyms E. MERRILL, GoRA D. SEIIENER. 

